auth.php

Auth::config(array(
	'default' => array(
		'adapter' => 'Cas',
		'server' => 'http://localhost:9001/cas/login',
		'service' => 'http://localhost:8000'
	)
));

Cas.php

<?php
namespace app\extensions\adapter\security\auth;

use lithium\core\Libraries;

class Cas extends \lithium\core\Object {
	protected $server = "";
	protected $service = "";

	public function __construct(array $config = array()) {
		parent::__construct($config);
		$this->server = $config['server'];
		$this->service = $config['service'];
	}

	public function check($rules, $request) {

		$args = func_get_args();

	}
	
}

?>